Home / 156,814.56-216,289.68-99,471.36

Finding the Fourth Proportional to 156,814.56, 216,289.68 and 99,471.36

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Solution

The fourth proportional to 156,814.56, 216,289.68 and 99,471.36 is: 137,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,814.56 : 216,289.68 = 99,471.36 : x
  2. Step 2: Convert to fraction form
    156,814.56/216,289.68 = 99,471.36/x
  3. Step 3: Cross multiply
    156,814.56x = 216,289.68 × 99,471.36
  4. Step 4: Simplify right side
    156,814.56x = 21,514,628,623.56
  5. Step 5: Solve for x
    x = 21,514,628,623.56/156,814.56
  6. Step 6: Final answer
    x = 137,197.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.